Slicing machine



I Sept. 25, 192

1,685,271 w. J. CAMPBELL SLICING MACHINE Filed Nov. 26, 1926 2Sheets-Sheet l I, 'HII fzza ezzar A 5 1 7 Z/eZ/Zawffdmpk/Z .5; P HMSept. 25, 1928.

W. J. CAMPBELL SLICING MACHINE Filed Nov. 26, 1926 2 Sheets-Sheet 2iffy/72454.2

K /bac w- Patented S ept. v 25, 1928.

UNITED STATES.

1,685,271 TPATNT FFlCE.

WILLIAM J'. CAMPBELL, F INDIANAPOLIS, INDIANA, ASSIGNOR TO AMERICANSLIC- ING- MACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF NEWYORK.

SLICING MACHINE.

Application filed November 26, 1926. Serial No. 150,712.

My invention relates to an improvement in slicing machines. One objectis the provision of a deflector for use with slicing machines havingrotary cuttingknives. Another object is the provision of guard means, inassociation with such deflectors, to protect the operator from the knifeduring normal operation of the machine and during adjustment or cleaningof the deflector plates. Other objects will appear from time to time inthe course of the specification and claims.

I illustrate my invention more or less diagrammatically in theaccompanying drawings, wherein- Figure 1 is an elevation;

Figure 2 is a section on the line 22 of Figure 1;

Figure 3 is a-section on the line 33 of Figure 1;

Figure 4 is a section on the line 1- of Figure 1;

Figure 5 is an elevation of the opposite side of the machine; showing avariant form;

Figure 6 is a section on the line 66 of Figure 5;

Figure 7 is a section on the line 77 of Figure 5;

Figure 8 is an elevation, similar to 1, of a variant form;

Figure 9 is; a section on the line 99 of Figure 8; and

Figure Figure 10 is "a section on the line 1010 of Figure 8.

Like parts are illustrated by like symbols throughout the specificationand drawings.

Referring to the drawings A is any suitable base frame member having anysuitable supporting studs A B is any suitable upwardly projecting knifehousing, the housing and the supporting frame therefor, the details ofwhich form no part of the present invention, not being indicated ingreat detail. B indicatesthe rotary knife and B any suitable motor meansfor rotating it. 13 is the rear of the knife enclosing housing which iscut away or terminates along the line B, exposing a portion of the knifeblade from the rear.

C indicates the receiving tray upon which the slices fall as they leavethe.knife. In Figure 1 the tray is indicated as having an upwardlyextending wall 0 with an armately cut away portion C generallyconforming to the edge of the knife and serving as a guard or protectionto limit the movement of Thus it is possible to-conform to various sizesof knives and to allow for wear. The ad usting members include a slot Cin the frame A, a stud C depending from the tray (l, penetrating saidslot, and a locking washer C" with a locking screw C The forward orarcuate portion of the tray is cut away or recessed as at 0 along thegreater portion of its length in order to receive the lower edge of thenormally fixed guardplate B This disposition is shown in cross-sectionin Figure 2. .C indicates a forward ledge on the tray which may receiveany bits of material dropping from or thrown from the forward face ofthe'knife.

D indicat s a gauge plate movable toward and away rom the cutting planeof the knife and D is a housing the front of which is closed by saidgauge plate. D is any suitable means, herein shown as a rotary knob, foractuating the gauge plate controlling mechanism within the housing D Theactuating mechanism for the gauge plate forms of itself no part of thepresent invention and is therefore not indicated in detail.

It will be understood that the gauge plate D is also adjustable towardand away from the knife edge, it being provided for example with theslots D through which pass any suitable securing means, for example thescrews H It will be realized that any suitable means may be employed forconveying the meat'to be cutpast the knife edge, whereby at eachexcursion of the meat or the material being cut a slice is severed bythe knife and falls which a reciprocating meat carriage may be knife andin order to prevent the gathering in the machine of bits of meat which,by their putrcfaction, might cause unsanitary and un-' form the bladeportion appetizing conditions. I therefore provide a deflector platehaving an edge generally conforming to and closely engaging the innerface of the knife. Referring to Figure 1 I indicate a plate E having aportion E conformingto the opposed face of the housing B and betweensuch edge and the rotated pieces and particles is, however, an acute oneand they are therefore thrust outwardly thereby toward the edge of theknife. with a minimum tendency to gather against the deflector or toresist the action of the deflector. As the particles or pieces are fedoutwardly towards the periphery of the knife, their movement isacce-ntuated by the increased centrifugal force caused by the increasingdistance from the center of rotation of the knife.

' Inorder to permit'adjustment of the deflector'in relation to the knifeI provide the slots E in the base portion E through which pass thelocking members or screws E with the clamping washers E. An accurateadjustment is thus possible in relation to any size or thickness ofknife. I i

In Figure 8 a somewhat different-form of deflectoris illustrated inwhich a deflector body G insteadof being inclined with relation to theface of the knife is (generally perpendicular to it, its inner edgeconforming to the contour of th'e'knife blade as shown in Figure '10.The deflector is shown as bent or formed to conform to' the edge B ofthe housing B and, so formed, acts as does the deflector portionE tourge the slices and particles of'meat outwardly toward the pe-. ripheryof knife. It is provided also with adjusting and securing slots G forthe securing screws G? with their washers G as shown in Figure 10.

Inorderto permit a safe adjustment of the scraper or deflector in theform shown in Figure 1, I form the receiving tray C with the rearrotecting wall 0, as above described. t often happens that it isdesirable to employ a lower tray or even to dispense with the removabletray altogether. I may therefore in such case provide for independentguard means. In the form shown in Fig- I ure 5 I employ a guard memberhaving a body portion H secured to the front of the gauge plate D andadjustable thereon for example by the slots H which receive thereceiving members H with the lock washer H H is an arcuate extensionfrom the inner end thereof with the inward crook H which serves to bringit to the rear of the cutting plane of the knife. In the form of Figure8 I substitute for the member H a similar member J havinga portion Jsecured to the rear of the gauge plate D and an arcuate portion Jextending therefrom in proper protecting position in relation to theexposed lower arc of the knife. J 3 are adjusting slots to receive thelocking or securing members J.

It will be realized that whereas I have described and shown a practicaland operative device, nevertheless many changes might be made in thesize, shape, number and disposition of parts without departing from thespirit of my invention. I therefore wish my description and drawings tobe taken as in a broad sense illustrative and diagrammatic rather thanas limiting me to. my specific showing.

The use and operation of my invention are as follows:

In the form of my device illustrated in Figure 1 I employ a deflectorsecured to the rear of the housin and having an inclinedblade portion Ewith an edge E engaging or extending close to the rear face of theknife. The edge E is so formed or curved and inclined in relation to thepath of the knife and of the particles and slices cut by it as todeflect them gradually to the periphery of the knife. The deflector G ofFigure 8 has the same func tion but differs from the deflector E in theinclination of the deflector blade to the plane of the knife, it beinggenerally perpendicular to the knife whereas the member E is inclined ata relatively acute angle as shown in Figures 3 and 4. In the case ofeach form adjustment is affected by adjusting slots or apertures whichare not only long enough to permit longitudinal adjustment therealongbut are of greater width than the stems of thescrews passing throughthem, thus permitting adj ustment 1n two main planes and intermediate"or tilting adjustments as well. I

' In the form of Figure 1 the rear edge C of the tray 0 is formed toprotect the lower exposed arc of the knife. In the forms of Figures '5and 8 a separate guard member is employed, securedin one case to theforward and in the other case to the rearward face of the gauge plate.tray, detachable or otherwise, of any desired form. In each case theguard member is com: pletely adjustable by means of a plurality ofadjusting slots of such width as to permit lateral as well aslongitudinal adjustment in relation to the securing screws or pins. Thusthe a-rcuateportion H or J 2 can be accurately adjusted 1n relation tothe edge of the knife and can be centered concentric with the axis ofrotation.

I claim:

This permits the use of a r 1. The combination with a slicing machinehaving a rotary knife and means for rotating 1t, of a vslice'receivmgmember and a guard for the edge of the knife, integral with saidrearwardly of said knife, and extending upwardly to general alignmentwith the knife edge.

2. The combination with a slicing machine having arotary knife and meansfor rotating it and a forward guard plate for said knife, of a receivingmember and an inner edge thereof adapted to serve as a knife edge guard,

. said edge being recessed to. receive the lower edge of said guardplate.

3. The combination with a slicing machine and a rotary knife and meansfor rotating it, of a receiving member, having an inner guard portionconforming generally to the arcuate edge of the knife and a forwardreceiving portion positioned on the opposite side of said guard portionfrom the body of the receiving member.

4. The combination with a slicing machine having a rotary knife andmeans for rotating it, of means, opposed to one face of the knife,adapted to cause movement of particles, carried on the face of theknife, outwardly toward the periphery of the knife, said means includinga deflector member one edge of which closely approaches and conforms tothe face of the knife, the edge of such deflector member extending froma point well within the periphery of the knife'to the edgeof the knife,such edge being inclined to the radius of the knife, and outwardlyinclined across the aths imparted by the knife to particles adering toor travelling upon the face of the knife.

5. The combination with a slicing machine having a rotary knife andmeans for rotating it. of means, opposed to one face of the knife,

particles adhering toor travelling upon the face of the knife. 7

6.- The combination with a slicing machine having a rotary knife andmeans for rotating it, of a slice receiving member and a guard for theedge of the knife, conforming generally to the are or the edge of theknife and normally fixed in relation to said slice receiving member.

Signed at Indianapolis, county of Marion, and State of Indiana, this19th day of November, 1926.

' WILLIAM J. CAMPBELL.

